171 	u32 inx;  in kfd_get_kernel_doorbell()  local
174 	inx = find_first_zero_bit(kfd->doorbell_available_index,  in kfd_get_kernel_doorbell()
177 	__set_bit(inx, kfd->doorbell_available_index);  in kfd_get_kernel_doorbell()
180 	if (inx >= KFD_MAX_NUM_OF_QUEUES_PER_PROCESS)  in kfd_get_kernel_doorbell()
183 	inx *= kfd->device_info->doorbell_size / sizeof(u32);  in kfd_get_kernel_doorbell()
189 	*doorbell_off = kfd->doorbell_base_dw_offset + inx;  in kfd_get_kernel_doorbell()
194 		*doorbell_off, inx);  in kfd_get_kernel_doorbell()
196 	return kfd->doorbell_kernel_ptr + inx;  in kfd_get_kernel_doorbell()
201 	unsigned int inx;  in kfd_release_kernel_doorbell()  local
203 	inx = (unsigned int)(db_addr - kfd->doorbell_kernel_ptr)  in kfd_release_kernel_doorbell()
207 	__clear_bit(inx, kfd->doorbell_available_index);  in kfd_release_kernel_doorbell()